.table-designer {
    display: flex;
    flex-direction: row;
    height: 100vh;
    max-height: 100nh;
    overflow: auto;
    overflow-y: auto;
}

.d-row {
    display: flex;
    flex-direction: column;
}


.d-row-left {
    flex: 2;
}

.d-row-center {
    flex: 8;
}

.d-row-right {
    flex: 2;
}